WATERPROOF DESIGN: The motor features a waterproof design and technology, offering some rust protection and ensuring normal operation in rain. 14 POLE, COPPER COILS: 14 pole 12 slot high torsion motor design. High-purity copper coils maximize efficiency and offer temperature resistance up to 180-200℃. CNC MACHINED STEEL SECTIONS: The waterproof brushless motor utilizes CNC machining for steel blanks, 6061 T6 aluminum heat sinks, and secondary oxidation treatment for a high-end, refined appearance. HIGH-ROTATION BEARINGS: High-speed ABEC5 super durable imported sealed bearings provide low friction, low noise, high accuracy, and long-lasting performance. SILICON STEEL SHEETS: Imported ultra-thin silicon steel sheets offer excellent performance, high magnetic conductivity, high silicon content, and outstanding insulation and heat resistance. Item Type: Brushless Motor Material: Aluminum Alloy, Copper Color: Black Red Shaft Length: Approx. 12 mm/0.47 in Shaft Diameter: Approx. 4 mm/0.16 in Interface: 3.5 mm gold-plated head male connector Package Includes: 1 x Motor 4 x Motor Mount Accessories 8 x Screws 1 x User Manual 100% Satisfaction: Our customers are our top priority. If you encounter any product issues after receiving the item, such as damage or incorrect quantity, please contact the seller immediately. We strive to provide you with satisfactory after-sales service. Thank you for shopping with us!